Newer Roomba won't connect to wifi half the time. About useless. We have great wifi throughout the house, do Roombas have weak wifi receivers? : r/ roomba
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Please help! Can't activate the WiFi search on Roomba 645 : r/roomba
Roomba will soon be able to build a map of your home's Wi-Fi coverage - The Verge
Easy Ways to Connect a Roomba to WiFi: 8 Steps (with Pictures)